{"id":"CVE-2026-74802","state":"PUBLISHED","title":"SiYuan 3.7.3 Cross-Site WebSocket Hijacking via network proxy","description":"SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. 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